Sled-propeller



W. R. MULOCK.

SLED PROPELLER. APPLICATION FILED MAR. 25 I921.

1,401,275, Patented Dec. 27, 1921.

WILLIAM BEDFOBD MUIDGK, 0F WIZNNIPEG, MANITOBA, CANADA.

sna -recreates.

Specification of Letters Patent.

Patented Dec. 27, 1921.

Application filed March 26, 1921. Serial No. 455,913.

To all whom it may concern:

Be it known that I, VVILLIAM Rnnrom) MULOCK, a subject of the King of Great Britain, and resident of Winnipeg, in the Province of Manitoba, Dominion of Canada, have invented certain new and useful Improvements in Sled-Propellerspof which the following is a full, clear, and exact specification.

This invention relates to means for manually fpropelling sleds or other vehicles and h s or its object to provide simplified poling apparatus for this purpose.

The invention contemplates the use of propelling poles or rods shodwith metal and exibly connected to opposite sides of the sled so that they may be freely moved for poling the sled along. A special object of the present invention is to provide improved means for attaching the flexible connections at one end to the sled and at the other end to the poles, the latter connection preferably allowin for additional play or movement of said po e with respect to the sled.

The invention will be first hereinafter described in connection with the accompanying drawings, which constitute part of this specification, and then more specifically defined in the claims at the end of the description.

In the accompanying drawings, wherein similar reference characters are used to designate corresponding parts throughout the several views:

Figure 1 is a perspective view of a sled with propelling poles attached thereto in accordance with the preferred form of this invention.

Fig. 2 is a detailed elevation, drawn to a larger scale, of one of the connector disks used for attaching the chains to the sled.

Fig. 3 is a central vertical section of said connector disk attached to one side of the sled and showing the connection of the chain therewith, and

Fig. 4 is a side view of a sled showing a modified form of connection between the chain and pole.

Referring first to Figs. 1, 2 and 3 of the drawings, 1 desi ates a sled to each side of which a prope ling pole 2 is attached by means of a chain 3. At one end of each chain there is a ball or head 4 attached thereto by a reduced shank 5, while at the other end of said chain a ring 6 is suitably fastened. The ball 4 is engaged with a connector disk 7 fastened to the side of the sled by screws 70 and having a vertical pocket or communicate with the lower end of the passage 8. When the ball 4 is dropped into said passage or pocket 8, its shank 5 passes through the slot 9 until it reaches the opening 10 which is smaller than said ball and consequently retains the latter in engagement with the disk 11 while allowing universal movement of the shank 5 in said opening 10.

The ring 6 on the free end of each of the chains 3 is loosely mounted around the corresponding pole 2 to have free sliding movement thereon between fixed collars or abutments 11 on said pole. Said collars may be located and spaced on the pole as desired to permit more play or movement of the latter with respect to the sled than is permitted by the length of chain 3 illustrated. By this means, the same degree of play may be obtained with a shorter chain as would be possible with a much longer chain if the latter were fixedly attached to the pole.

In use, a child seated on the sled and facing the front end thereof grasps the forward ends of the poles 2 and reciprocates said poles in the same manner as in poling a boat. The rear ends of the poles are shod with metal tips 12 of any suitable shape to engage the surface of snow or ice over which the sled passes.

As shown in Fig. 4, a pole 20 is attached to the side of a sled 21 by means of a chain 22, one end of which is fastened to said sled by a disk 23 similar to the disk 7 already described, while the other end of said chain is attached to a collar 24-. fixedly fastened to said pole. If the chain 22 is the same length as the one shown at 3 in Fig. 1, the play of the ole 20 will be more restricted than that of t e pole 2, owing to the fixed connection between said chain 22 and pole 20. However, the chain 22 may be made long enough, if desired, to allow for substantially the same play of the pole 20 as is permitted by the shorter chain 3 and sliding ring 6 to the pole 2. V

I claim:

1. The combination with a vehicle, of poles for propelling the same, and linear connections of flexible non-elastic material, each secured at one end to the vehicle and at the other end to an intermediate point on one of the poles whereby said poles have free longitudinal and rotary movement with respect to the points of attachment of the linear connections to the vehicle.

2. The combination with a vehicle, of poles, flexible connectionsv between said poles and the vehicle, the ends of said flexible connections which are attached to the poles being adapted to slide thereon, and means for limiting said sliding movement of the flexible connectionson the poles.

3. The combination with a vehicle, of poles having spaced abutments thereon, flexible connections attached at one end to the vehicle, and rings on the other ends of said flexible connections mounted to slide on the poles between said abutments.

4. The combination with a vehicle, of poles, flexible connections between said poles and vehicle, headed shanks on the ends of said flexible connections and connector disks 30 secured to the vehicle and to which said flexible connections are attached by said headed shanks.

5. The combination with a vehicle, of

poles, flexible connections between said poles 35 WILLIAM REDFORD MULOCK. 

